Peters



glatten' gtst-e5 gstent @time SAMUEL- DAR 'LING, 0F BANGOR, MAINE. i Letters Patent No. 68,353, dated September 1867.

WIN DOW-VENTILATOR.

TO ALL WHOM IT MAY CONCERN:

Beit known that I, SAMUEL DARLING, ot Bangor, in the county of Penobscot, and State of Maine, have invented a new and improved `Mode of Ventilating Buildings, Railway Cars, Coaches, Ships, and all apartments where it is applicable; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and :to the letters of reference marked thereon, in which- -Figure 1 is a perspective view of my invention applied to a window-sash.

Figure 2 is a perspective view of the register detached fromthc sash, and v Figure 3 is a vertical section of an inner sash and ventilator combined with an outside or double window or sash. i

Similar letters of reference indicate corresponding parts in the several figures.

My invention is designed to meet the constantlyegrowing demand for a simple and cheap moans for venti lating apartments of any description where a window is used. Manyattempts have been made to ventilato apartments not originally constructed with reference to ventilation, but most, if not all thc plans hitherto devised, require some material change in the building or apartment, or some expensive appliance, and most of them are' not so easily adjusted and controlled as to be acceptable to the general public. V

'The object of inyinvention is to afford a means within the reach of the poorest, and controllable by a child, and yet succeptible of being applied rto any window-sash, or to double sashes where the rigor of the. climate demands their use.

To this end my invention consists in making perforations, of any proper size or number, directly through the 'sash of the window, and then applying to the inner side of the sash a metallic plate, having similar holes corresponding in size and number, and upon this plate atiixing another plate to slidethereon, this latter plate being somewhat shorter than the first, and having preferably one less in number of similar holes.

It` further consists in a modification/of this general plan toadapt the same to apartments where double sashes, so called, or one sash placed outside another, with a space between the two, are used, as in the more northern tier of the States.

Fig. l of the accompanying drawings represents a perspective view of the frame of an ordinary sash with my invention applied thereto. n

Fig'.` 2 represents the two plates used in my improvement detached from a sash, and on a scale somewhat larger than in g, l.

Fig. 3 shows the construction and manner of applying my invention to double sashes, the figure showing a crosssection of the side of a sash directly through the centre ofthe openings ofthe Ventilating device.

The same letters refer to similar parts in all the figures.

A represents n sash; e represents the openings bored or cut directly through any part of a sash which may be found most desirable or convenient for the purpose; 6 is a thin plate ofmctal, having any desired number ofholes corresponding to the opening c; a is another metallic plate, preferably made shorter than the plate t, and having lalso, by preference, one less in number of similar holes, and at the same distance apart. This shorter plate is fitted to slide in any well-known manner in the plate Z). I prefer to have it slide in grooves in the edges of plate b, as shown, and when moved tothe upper end of'b the openings in this plate are all uncovered, and when moved to the lower end they are all closed. These plates I attach to the sash by screws passing through the under plate Z1 into the Wood. .I prefer to make the openings c in the sash so that they shallvincline downward and outward, as shown in iig. 3. When itis desirable to give to the exterior of the sash a finished appearance metallic thimbles may be inserted in the perforations in the sash, as shown at e e e in tig. 3. When double directly into the room Without coming in contact with that contained between thc windows, so that the room may be ventilated in Winter without any necessity for moving the inside sash, or removing or opening any part of the outer one, this outer one being generally avxture inthe Winton-and having' no provision for being raised or opened in .any way; The downward inclinationot" the openings or tubes prevents the freezing, or clogging, or filling of the same, by permitting rains, sleet, dust, Sac., to run oif.

Any desired number of these ventilators may be inserted in a sash, so as to multiply the means of supply of fresh air to any desired extent. They may also be inserted in both the upper and lower sashes of windows at any degree of.elevation from the floor that may be found convenient, and also in any part of a sash; and a great variety-of the valvular device may be employed to let on or shut oiI the air in its passage through the rail of the sash; the device that I have shown being selected as among the least expensive and most readily applied. Nebwork may be placed over'the apertures in the sash to prevent the ingress of insects in warm weather.y

Besides the simplicity, eheapness, and facility of being applied te a sash, other advantages may be stated asappertaining to my invention. "When used upon the windows of buildings the sashcs may be permanently fastened as a security against burglars, and yet ample ventilation be secured. Nor is this mode of ventilation aifected by the cold 0r heat, by wet or dry weather, so asto become inoperative from any of these causes. When, by reason of freezing in the colder seasons, or by swelling caused by rains and damp atmospheres in other seasons, windows of all kinds, whether in buildings, cars, vessels, or elsewhere, are unreliable in their free werking in their easements, so as not to'be raised at will to supply air, the application to the same of my invention meets the diiiiculty and affords the remedy. In travelling-cars and coaches also each traveller may draw" his own supply of air.

I am aware that perforated plates, and also revolving ventilators, and various other contrivances have been inserted, but at considerable inconvenience, labor, and expense, in the walls of apartments for the purposes of ventilation. Also, I am aware that hinged or swinging planes or pieces of glass have been used; also that lapping strips of gia-ss arranged with air-spaces between them have been used instead of an ordinary pane of glass, and for a similar purpose. I ani also aware that it has been proposed in making new sashes to construct them with extensions at top and bottom for the reception ofventilators extending all across the width ofthe window. But neither of these nor any other means for ventilation, as far as I am aware, has ever been applied directly to, inserted in, or combined with the sash of an ordinary window.v I

My devieeis readily, cheaply, and easily applied to any window-sash, easily controlled, and the amount of air introduced by it suseeptibleof being graduated at will.

I claim combining with an ordinary window-sash a Ventilating device inserted in the sash itself, substantially as described. Y

I claim, in combination with a Ventilating device, substantially such as described, openings or perforations in the sash inc-lining downward and outward. I

I claim, in combination with double sashes, one or more Ventilating-tubes inserted therein, and provided with a valve, substantially as described. l

' SAMUEL DARLING.

Witnesses:

Jenn E. HALL, C. P. Bnowa'. 

